We were infordmed that our flight ____ because of the mechanic failure
A.have canceelled
B.canceelled
C.have been canceelled
D.had canceelled
正确答案:C
We were infordmed that our flight ____ because of the mechanic failure
A.have canceelled
B.canceelled
C.have been canceelled
D.had canceelled
正确答案:C